package filter;

import model.User;

import javax.servlet.*;
import javax.servlet.annotation.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebFilter(filterName = "AdminFilter",urlPatterns = "/admin/*")
public class AdminFilter implements Filter {
    public void init(FilterConfig config) throws ServletException {
    }

    public void destroy() {
    }

    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws ServletException, IOException {
        HttpServletRequest req = (HttpServletRequest)request;
        HttpServletResponse resp = (HttpServletResponse)response;
        User u = (User) req.getSession().getAttribute("user");
        if(u==null || u.isIsadmin()==false) {
            resp.sendRedirect("../index.jsp");
        }else {
            chain.doFilter(request, response);
        }
    }
}
